Treatments for brittle nails include rubbing olive oil and lemon juice onto the nails or using a tea-tree oil and vitamin E mixture on nails, according to AllWomensTalk. Olive oil and lemon juice help moisturize nails, tea-tree oil prevents infections and vitamin E promotes nail growth, states Best Health Magazine.
Brittle nails break because the nails are dry, so applying a moisturizing solution such as olive oil and lemon juice prevents the nails from drying out. Avoid using nail polish remover, which dries out the nails and causes them to be brittle. Increasing the amounts of essential fatty acids in the diet can also help brittle nails, states Best Health Magazine